Difference between revisions of "Activities/Abacus"

Latest revision as of 23:47, 14 June 2018

The source file has been moved to GitHub

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-[[File:Abacus.jpg]]
+== Abacus ==
-== Where to get Abacus ==
+Read at https://help.sugarlabs.org/abacus.html
-[http://activities.sugarlabs.org/en-US/sugar/addon/4293/ Activity] | [http://git.sugarlabs.org/projects/abacus/repos/mainline Source]
+The source file has been moved to [https://github.com/godiard/help-activity/blob/master/source/abacus.rst GitHub]
-== About Abacus ==
-[[File:Abacus-icon.png]]
-[http://en.wikipedia.org/wiki/Abacus Abacus] lets the learner explore different representations of numbers using different mechanical counting systems developed by the ancient Romans and Chinese. There are several different variants available for exploration: a [http://en.wikipedia.org/wiki/Suanpan suanpan], the traditional Chinese abacus with 2 beads on top and 5 beads below; a [http://en.wikipedia.org/wiki/Soroban soroban], the traditional Japanese abacus with 1 bead on top and 4 beads below; the [http://en.wikipedia.org/wiki/Abacus#Russian_abacus schety], the traditional Russian abacus, with 10 beads per column, with the exception of one column with just 4 beads used for counting in fourths; and the [http://en.wikipedia.org/wiki/Abacus#Native_American_abaci Nepohualtzintzin], a Mayan abacus, 3 beads on top and 4 beads below (base 20).
-<gallery>
-File:Suanpan.png|suanpan (Chinese)
-File:Soroban.png|soropan (Japanese)
-File:Schety.png|schety (Russian)
-File:Nepohualtzintzin.png|nepohualtzintzin (Mayan)
-</gallery>
-[[Category:Activities]]